I had a friend like this years ago who would always come out to a restaurant when there was a big group of us because whenever we'd all put money collectively on the table to cover the bill plus a bit extra for tips, dude would be all
knowing he'll put down a lot less than what he actually had. He took advantage of the fact that there was a lot of us.
Same thing when we'd order food and put money together he wouldn't chip in, but would be the first to start
with his ole hungry hungry hippo, slimer from Ghosbusters ass.
The funny thing is, he had a really good job with an American bank in the city where they'd pay him ridiculous bonuses but he left it over trivial reasons and didn't find much work since.